The Smoker Craft Infinity M-818 CR Sundeck 2004 vs Smoker Craft Infinity M-8520 F 2005 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
Size is the most obvious dividing line here. The Smoker Craft Infinity M-818 CR Sundeck 2004 measures 18,0 feet overall (2004), giving it roughly 16,0 additional feet of deck space compared to the Smoker Craft Infinity M-8520 F 2005 at 2,0 feet (2005). At 142 lbs and 158 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
For family outings this is probably the sharpest distinction between the two. The Smoker Craft Infinity M-8520 F 2005 is rated for 12 passengers, while the Smoker Craft Infinity M-818 CR Sundeck 2004 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Smoker Craft Infinity M-8520 F 2005 could be the deciding factor.
Bottom line: Choose the Smoker Craft Infinity M-8520 F 2005 if your priority is putting more people on the water — it handles 12 passengers and at 2,0 ft it has the deck room to back that rating up comfortably. The Smoker Craft Infinity M-818 CR Sundeck 2004 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.